Aluminum dinner pail



Jul 26 192 y 7 .1. c. FRITZGES ALUMINUM DINNER PAIL Filed Dec. 15. 1926 3 Sheets-Sheet l Jul 19 y 27 J. c. FRITZGES ALUMINUM DINNER PAIL Filed Dec. 1 1926 5 Sheets-Sheet 2 y 26 27 J. c. FRITZGES ALUMI NUM DINNER PAI L Filed Dec. 15, 1926 s Sheets-Sheet 3 Patented July 26, 1927.

UNITED STATES JOHN C. FRITZGES, F PARSONS, PENNSYLVANIA.

ALUMINUM DINNER PAIL.

Application filed December 15, 1926.

Aluminum is, in many respects, an ideal material for liquid and "food containers and utensils and is extensively used for such purposes.

However, it is impractical, and almost im possible, to satisfactorily solder the seams or joints of aluminum receptacles. lVhere the construction 01? a utensil, container, or the like necessitates the use of a joint, seaming is usually resorted to.

My object is to provide an improved dinner pail having a body adapted to contain food, and provided with a combined liquid container and cover of two-part construction, the parts of which have an improved joint or seam which is liquid tight and is also so constructed that it cooperates with the beaded upper part of the tood container to lock or clamp the liquid container in position and thus form a tight joint which is not easily disengaged and which will not rattle.

I have also designed improvements in the shape of the upper part of the liquid container which enables the liquid container to be readily snapped on or off of the pail with-' out necessitating the use of spring ears, which are usually used to retain the cover.

The improved seam which constitutes the joint between the upper and lower sections of the liquid container is formed by a series of rolling operations effected in a new manner by a seaming wheel as will appear :tully hereinafter.

In the accompanying drawings:

Figure 1 is a perspective view of my improved dinner pail, certain parts being broken away;

Figure l is an enlarged vertical section through the liquid container and the pail proper, showing the improved seam or jointand the manner in which the liquid container and pail are detachably connected together;

Figure 3 is a cross-sectional diagrammatic view showing the shapes of the bottom and top sections of the liquid container as they come from the press after being stamped and flanged;

Figure 1 is a similar view illustrating these sections in a chuck, the initial bend or turn of the seam having been made;

Figure is a similar view illustrating the next step in the formation of the seam;

Figure 6 is a similar view showing how the final construction of the seam is etiected;

Figure 7 is a perspective view of a cover Serial No. 154,931.

embodying the invention, showing the pressed-in form of the seam at the sides and ends, this cover having no liquid receptacle, hence better illustrating the construction by which the cover is retained; and

Figure 8 is a bottom view showing the cover of Fig. 7, applied to the pail, the latter being in section.

The food container of my improved dinner pail appears at 1; the improved liquid container or bottle is shown at 2, the latter having an opening in its top which is covered by a cup or cap 3 which is a common feature in dinner pails. The body 1 is provided around its upper edge with a bead 4 of any well known constrimtion, and the pail has an ordinary handle 5 connected to ears 6 on the body 1.

The liquid container 2 is formed of upper and lower sections 7, 8.

These sections are seamed or joined together in a new manner so that the necessity .t'or atten'ipting to solder them is done away with and at the same time the joint is leak proof.

Referring to Figure 3, the sections 7 and S are shown in the condition in which they appear as they come from the press after having been stamped and flanged, the flanges appearing at 9 and 10, the latter being provided with a lateral part which is longer than the former. The space or channel 11 is of a width adapting it to snugly receive the bead l, as shown in Figure 2.

The sections 7 and 8 having been placed in a chuck 12, a bead forming or crimping wheel is used to form the initial bend or turn of the lower flai'ige as shown at 13.

he next step is to subject the flanges 9 and 10 to a crimping action by using a crimping or seaming rotary wheel 'ly-jl, having a periplt eral groove or channel shaped to bring about a seaming action on the flanges 9 and 10 as shown in Figure 5.

The final step is to employ a rotary crimping or seaming wheel 16 having a channel or groove 17 adapted to compress the seam as shown in Figure 5 to the shape shown in Figure 6, and when this operation has been completed the seam has the finished appearance shown at 18 in Figure 2.

The joint thus effected between the sections 7 and 8 is a double joint which is very tight and is leak proof. In addition to this advantage, the thickness of the seam 18, is such that while the inherent springiness oi which isnot provided with the sections 4 the outstanding flanges 19 and 20 is not interferedwith for the purpose'ot snapping the parts together into the position shown in Figure 2 with the. head 4, snugly grasped, nevertheless, the thickness of the joint at 18 prevents accidental distortion, 'so'that the pail will withstand considerable hard usage without interfering with the fit of the container 2 in respect to the body 1.

The section 8 p is preferably, formed with rounded corners 21. The seam 18 after; re; ceiyiiig its rolling, asshownin Fig. (Sis taken fi-om'tlie chnok a nd is given'a press operation which slightly forces, it inwardly, to causethe central parts9 2 of the seam at the sides and ends 0t the'coyei; to be drawn in deeper, and too gradually slope outwardly to the corner-s22}, This construction permits the easy snapping on and oft of the container and prevents rattling- 01? the said container in respect to thebody 1, as a lock is thus provided.

i In Figures 7 and 8, this feature. is en n qsi s t y sheat s Uns n ov r. 24

and 8. The construction shown at Q'Zand 23 is, however. provided on the embodiment shown in Fig. The manner inwhich the lock thus provided, effectively holds the cover in place willbe clear t'roin Figure 8.

A further advantage inheringnn the double seam illn ,tratedat 18, 19,2), is the pro,- tection :ifl'or ed against the entrance of dust or insects.

j leiev 1, In a sheet metal dinner a aihthe co nb ination witha body, of a c oin ined top and receptacle comprising sections having; an outstanding seamed joint overlying endemhracing,theedge of the body,

2 n a sheetunetal dinner pail, the com; bination with a body of acombinedtop and receptacle comprising, sections which have an outstanding sea ni which is double sub; stantially throughout its extent and is. provided with abeadseparated from thetop by a channel which receives and. embraces the upper edge ofthe body of the, pail.

3.- In a sheet; metal dinner pail, the com;

bination with a body, of a combined top and receptacle comprising; liPPGD and lower sections, the upper section extending above the body and the lower section depending into said body, said sections being joined by a seam which is double throughout its extent and includes a laterally extending flange, and a vertically arranged double head, the bead being spaced from the lower section of the said top by a channel, said channel snugly receiving and engaging the upper edgeof the body.

4-. In a sheet metal dinner pail, the combination with a body, of a combined topand receptacle therefor comprising sections which are connected by an outstanding double seam which receives and snugly engages the upper edge of the body. the lower one of said setitions depending within the body and the seam being provided with alternating rounded and concave parts.

5. In a sheet metal dinner ail, the combination with a body, of a com ined top and receptacle therefor comprising sections which are connected by an outstanding double seam which receives and s'nngly engages the upper edge of the body, the lower one of said sections depending within the body and the seam being provided with rounded corners and concave sides.

6. In a sheet metal dinner pail, the combination with a body, of a con'ibined top and receptacle comprising sections which have anoutstandingseannwhich is double and is provided with a depending beaded flange separated from the top by a channel which receives and embraces the up e'1- edge o'l'zthe body otthe pail, the depending part of the flange being pressed in at its center at the sides andiends ot said flange, thence. gradually slopingtoits corners said corners being rounded.

7. A combined cover and receptacle for a sheet metal dinner pajhsaidcover a nd receptacle having a seamed, snap-on depending flange adapted to embrace the upper edge of the pail, said seamed flange having certain parts concaved and certain parts eu ed, aus ns we e he Pai In testimony whereof I afiia my sigm ture.

JOHN C, FRITZGES 

